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Experiment with microphone sensor and ATTINY

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lun, 10/01/2007 - 20:44 — Samuel

The microphone sensor detect noise activity (5 meters). We can change the amplitude buffer by changing the capacitor value. The mic react by the airwave modulation.

  • The sensor could recognize a hand clap ( high amplitude, short time wave)
  • The repetitive sound like persone walking hard.

We can add filter (capacitor and resistance(not on photo))to reach specific frequency sound

  • Bass sound from truck passing or ghettoblaster !!
  • High sound like whisle, child laughing